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Python dict a method for determining the existence of a specified key value through a dictionary

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The examples in this article describe the way Python uses dictionary dict to determine whether a specified key value exists. Share to everyone for your reference. Specific as follows:

There are two methods in Python to determine whether a specified key value exists, one is judged by the method of the Dictionary object, and the other is through the in method, the following is a detailed example of Has_key.

d={' site ': ' http://www.jb51.net ', ' name ': ' jb51 ', ' is_good ': ' Yes ' #方法1: Via Has_keyprint d.has_key (' site ') # Method 2: Through Inprint ' body ' in D.keys ()

Hopefully this article will help you with Python programming.

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